Electric therapeutic instrument



(N ModeL) O. E. BALDWIN.

ELECTRIC THERAPEUTIC INSTRUMENT. No. 353,346; Patented N07. 30, 1886.

witmawo @WWJ. v *W UNITED STATES PATENT OFFICE.

CHARLES E. BALDVVIN, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO MARTINV. WVAGNER, OF MARSHALL, MICHIGAN.

ELECTRIC THERAPEUTIC INSTRUMENT.

SPECIFICATION forming part of Letters Patent No. 353,346, dated November30, 1886.

Application filed July 3, 1886.

To all whom it may concern.-

Be it known that I, CHARLES F. BALDWIN, a citizen of the United States,residing at Philadelphia, in the county of Philadelphia and State ofPennsylvania, have-invented certain new and useful Improvements inElectric Therapeutic Instruments, of which the following is aspecification, reference being had therein to the accompanying drawings,in

which Figure 1 represents an elevation of my instrument, and Fig. 2 acentral longitudinal section of the same.

This improvement relates to a battery, principally designed to be usedas a therapeutic agent, but it may be used for other purposes; and theinvention consists in the peculiar cornbinations and construction andarrangement of parts, hereinafter described, and then more particularlypointed out in the claims.

Referring now to the details of the drawings, which represent one formof my instrument, A indicates a spindle covered with rubher or otherinsulating material, as shown at a, and having one end enlarged to forma head and the other end preferably threaded to screw into the knob B,which is bored and tapped to receive it. Arranged on this spindle areseveral voltaic batteries, each consisting Of pairs of plates or washersc z, with a washer, f, of felt or some textile fabric between each twopairs. The plates in each pair should be of opposite electricalcharacter, as copper and zinc. Between each two piles I place a spiralspring, S, which will not only form an elec trical connection betweenthem, but will tend to keep the plates in contact with each other andthe felt. Around these piles is placed a thin casing, 0, preferably ofhard rubber or gutta-percha, which casing is shown in two parts, one ofwhich is firmly attached to the head, and the other preferably loose. Iplace two disks, 1), on the spindle, one at each end of the loosecasing, which disks may be made of any suitable character, butpreferably of a non-oxidizable character, or I may plate them with somenonoxidizable metal, or at least not readily oXidizable, which disksshould be 'of about the diameter of the casing, although they will do ifmade smaller.

I prefer to make the disks forming the piles of such a size that theywill readily pass into Serial No. 207,113. (No model.)

the casing; but the exact size is of no consequence, and I sometimesnickel-plate the spindle to prevent oxidization.

The operation is as follows: The knob being unscrewed, the casing may beremoved, and if necessary the parts maybe cleansed, and then a littlecommon vinegar is dropped into each pile,vafter which the casing is putin its place '60 p and the knob screwed on. The instrument is then readyfor use, and may be inserted in the vagina when used for diseases ofthat part. The disks now being in contact with the flesh,

an electrical circuit will be completed, of which 6 5 that part of thevagina between the disk D will form one portion, and an electric currentgen-- erated by the piles will thus pass from one disk to the otherthrough the parts of the vagina surrounding the casing.

I do not limit myself to the exact construction shown, as it is evidentthat this may be varied without departing from the spirit of myinvention.

\Vhat I claim as new is- 1. The combination, with the spindle A, of theperforated vollaic piles c 2 f, a casing inclosing the same, andcontactsuri'aces, as the disks D D, at or near each end of the casing,substantially as described.

2. The combination of the spindle A and a series of voltaic piles with aspring-connection between two of the piles, a casing surrounding thesame, and contact-surfaces, as l) D, at or near each end of the casing,substantially as 8;, described.

3. The combination of the volt-aic piles, consisting of plates 0 z andthe fibrous material f, with two disks in electrical connectiontherewith and an insulating-easing between said disks, substantially asdescribed.

4. The combination of the voltaic piles, consisting of the perforatedplates and fibrous material and the spindle A, with two disks inelectrical connection with the piles and an insulating material betweenthe disks, substantially as described.

In testimony whereof I affix my signature, in presence of two witnesses,this 19th day of June, 1886.

CHARLES E. BALDWIN.

Witnesses:

GEORGE THOMPSON, EDWARD TOBIN.

